Edge spacer for cultivated grass plots



June 9, 1925. 1,541,160

B. MacDoNALD EDGE SPACER FOR CULTIVATED GRASS PLOTS Filed June 30, 1924 FicTL Wouw Patented .lune 9, 1225i..

UNITED STATES BERNARD MACDONALD, E SOUTH vPfl.Sl-'rDEhL/fi, CALIFORNIA.

EDGE sraona non. conrrvaann Grasses genors.,

Application filed .Tune 30, 19,24. Serial No. I723,309-

Be it known that I, BERNARD MACDON- a citizen of the Ibnited States, "and a resident ofv South Pasadena, in the county of gIios Angeles and State of California, have invented certain vnew and `useful Improvements in Edge vSpacers for Cultivated Grass `Plots, of which ythe following 1s a specification. i

`In the residence districts of towns and cities and at country homes w iere cement curbings, walks and driveways jof present design are constructed 4contiguous ,tolawjns or cultivated grass plots, the growinggrass spreads lover ,the marginal edges ofzsuch cement construction, and it is difficult, laborious and expensive to keep :the lgrass .trimmed so as to maintain fthe `much-,to-bedesired clean and well defined marginal `line between the cement construction and ,thc grass areas above referred tol It is a purpose of my invention v,to kobviate this difficulty and vto` facilitate the work of trimming ,the grass along ythemargin of cement curbs, walks or driveways by providing an edge spacer which, when applied to the already existing cement curbings` pavements or driveways, or when incorporated in new cement construction of the same kind, provides simple, labor-saving and efficient means, by the use of which the margins or edges of lawns or other cultivated grass plots contiguous to such cement construction can be more neatly and more economically trimmed than has been heretofore possible.

I will describe only two forms of edge spacers embodying my invention and will then point out the novel features thereof in claims.

In the accompanying drawings- Figure 1 is a fragmentary view showing in top plan one form of edge spacer'embodying my invention as applied to a cement pavement and curbing;

Figure 2 is a vertical sectional view of Figure 1;

Figure is a view similar to Figure 2, showing another' form of edge spacer embodying my invention.

Referring specifically to the drawings, in which similar reference characters refer to similar parts, and particularly to Figures 1 and 2, 15 and 16 designate cultivated' grass plots, the former constituting a lawn and the latter a parking, with a cement pavement 17 ,interposed between the two,

and ai'l'c'jurbingr 18 interposed betw en trfe parking 16 and a street 1 9. 'fclearly shown'in IFigure 2, the ,marginal edges of the 'pavement 17 ,are rediiced in thickness yto provide at the"Rippersurfacether-ef grooves"or 'recesses 20L which are coexten ie in lengt/h with 'the pavement. With .s the paveniei'l'tY in ,applied posit onv between Atlie as s"plots land these recesses`or gi'oo if es 2O serve to space the edgesy of the upper Surface of 4the pavement ,tem 'the edssef the strass 151" send in bins "SO provide channels or vgro suitable grass' tri'mijnr lcan ,be `operated to" trilla' he s monta@ 'edges for che plots and aus Provide .a 'clear lijns f ,dem'areaten 'between the pavementfand the fp'lots. l'The bottoms yof the channels or H'recesses 2O varse' disposed below the surface of the grass i"plots,softhat should grass along the edgesA .ofV the plots grow linto the grooves orcha'nnels, the trimtool, when ,placed inthe grooves, can begoperatedto cutjhe projecting blades of grass and :thus produce ,a clean and straight edge v`for 'the' plots.y nIn view of the fact that grass cannot grow on the reduced edges of the pavement, the possibility of the grass growing across the grooves or channels :and thus destroying the line of demarcation between the plots and pavement is reduced to a minimum.

Referring again to Figure 2, the curbing 1S is shown provided with a marginal recess 21, co-extensive in length with the curbing, and arranged to provide a groove or channel between the curbing and the adjacent edge of the parking 16, which provides the same advantages as described in 4 connection with the grooves or channels 20.

Referring now to Figure 3, I have herein shown another form of edge spacer embodying my invention, in which a conventional form of pavement 22 is employed, the pavement being conventional in that its side edges are perpendicular. In this form of my invention trenches of suitable depth and width are dug in the plots 15 and 16 at the opposite edges of the pavement 22, and in these trenches spacing strips are deposited which have their upper edges disposed below the surface of the pavement to form grooves or channels 23 between the pavement and the grass plots 15 and 16. The spacing strips may be made of any suitable material, and in the present instance I have shown one strip 24 formed of wood and consisting of a beam of suitable dimensions to properly fit within the corresponding trench and in such manner that its upper edge is disposed below the surface ot' the pavement 22. The other spacing strip 25 is formed oi' cement which is adapted to be poured into the trench and properly tamped so that its upper edge is disposed below the surface of the pavement 22.

In Figure 3, 26 designates a trench' provided between the parking 16 and a curbing 27, the latter being of conventional form. The trench 26 is adapted to be lled with cement to provide an intervening groove or channel between the plot 16 and the curbing in the same manner as that described in connection with the spacing strip 25.

Although l. have herein shown and described only two forms or' edge spacers for cultivating grass plots7 embodying my invention7 it is to be understood that various changes and modilications may be made herein without departing from the spirit of' the invention and the spirit and scope of the appended claims.

What I claim is: p

l. A pavement for use in connection with lawns and comprising a body of plastic material having its upper surface disposed approximately 'flush with the surface of an adjacent lawn section and spaced therefrom laterally, said body further having a lateral extension disposed in the intervening space between the said surfaces of the lawn and the body and extending upwardly to a position substantially flush with the surface of the ground and below 'the adjacent sur- :laces oic the lawn and the pavement.

2. A pavement for use in connection with lawns and comprising a body of plastic material having its upper surface disposed approximately flush with the surface of an adjacent lawn section and provided in its upper marginal edge adjacent to the lawn with a groove or rabbet, the lower side oi which is substantially iush with the adjacent surface of the ground, the said groove or rabbet being constructed to provide an intervening lateral space between the adja cent surfaces of the lawn and the pavement.

3. A pavement for use in connection with lawns and comprising a body of plastic maj terial having its upper surt'ace disposerL approximately flush with the surface o' an adjacent lawn section and provided in its upper marginal edge adjacent to the lavm with a longitudinal groove or rabbet er;- tending throughout the length of the body and the iower side of which is substantially flush with the adjacent surfaces oi' the ground, the said groove or rabbet being constructed so as to provide an intervening lateral space between the adjacent surfaces ot the lawn and the pavement.

BERNARD MACDONALD. 

